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List the different ways to solve a quadratic equation ?1. You'll have to factoring.
2. Using the square roots.
3. Completing the square.
4. And do the quadratic formula.
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[tex]\underline{Answer :}[/tex]
Dollixna ~
the souder family went on a vacation with 3000$ if they spent 200 each day,how much money they got left after x days.
after x days they will have 3000 - 200x
Translate the verbal rule into an equation.
To get z, subtract 15 from x.
Answer:
x- 15= z
Step-by-step explanation:
If you want to get that z, it says to subtract 15 from x. So that's why the x comes first.
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Simplifying products and quotients of powers
Answer:
The screen is black
Step-by-step explanation:
prime factorazation of 70
Answer:
2 × 5 × 7
Hope this helps!
Answer:
2 x 5 x 7
Step-by-step explanation:
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Karen and Bill collect coins. Karen has x coins. Bill has 9 coins fewer than two times the number of coins Karen has. Write and simplify an expression for the total number of coins Karen and Bill have.
463 of 615 people who were asked question 1 favored the law. 403 of 585 people who were asked question 2 favored the law. Is there evidence that the phrasing may have influenced responses
Using the z-distribution, as we are working with a proportion, it is found that there is evidence that the phrasing may have influenced responses.
What are the hypotheses tested?At the null hypothesis, it is tested if there is no difference between the proportions, that is:
[tex]H_0: p_1 - p_2 = 0[/tex]
At the alternative hypothesis, it is tested if there is difference, that is:
[tex]H_1: p_1 - p_2 \neq 0[/tex]
What is the mean and the standard of the distribution of the differences of sample proportions?For each sample, we have that:
[tex]p_1 = \frac{463}{615} = 0.7528, s_1 = \sqrt{\frac{0.7528(0.2472)}{615}} = 0.0174[/tex]
[tex]p_2 = \frac{403}{585} = 0.6889, s_2 = \sqrt{\frac{0.6889(0.3111)}{585}} = 0.0191[/tex]
For the distribution of differences, we have that:
[tex]\overline{p} = p_1 - p_2 = 0.7528 - 0.6889 = 0.0639[/tex]
[tex]s = \sqrt{s_1^2 + s_2^2} = \sqrt{0.0174^2 + 0.0191^2} = 0.0258[/tex]
What is the test statistic?It is given by:
[tex]z = \frac{\overline{p} - \mu}{s}[/tex]
In which [tex]\mu = 0[/tex] is the value tested at the null hypothesis.
Hence:
[tex]z = \frac{\overline{p} - \mu}{s}[/tex]
[tex]z = \frac{0.0639 - 0}{0.0258}[/tex]
[tex]z = 2.47[/tex]
What is the decision?Considering a two-tailed test, as we are testing if the proportion is different of a value, and a significance level of 0.05, the critical value is [tex]|z^{\ast}| = 1.96[/tex].
Since the absolute value of the test statistic is greater than the critical value, it is found that there is evidence that the phrasing may have influenced responses.
More can be learned about the z-distribution at https://brainly.com/question/26454209
You have a bowl in the kitchen that is
exactly half of a sphere. The radius of
the bowl is 10 inches. How much food can
the bowl hold?
Find the volume.
Answer:
The answer is 2095 cubic inches
step-by-step explaination:
Given;Radius of hemisphere = 10 inches.To Find;Volume of Hemisphere = ?Formula;Volume = ⅔ π r³Now,
V = 2/3 πr³
V = (2/3) × (22/7) × (10)³ inches
V = 44/21 × (10)³ inches
V = 2.095 × 1000 inches
V = 2095 cubic inches.
Thus, The volume of bowl is 2095 cubic inches.
-TheUnknownScientist 72
find the measure of all missing angles.
Answer:
here is the answer
Step-by-step explanation:
a=90
b=80
c=45
d=45
e=138
Solve the following inequality.
x^2-x≥6
Answer:
x smaller than or equals to -2
x bigger than or equals to 3
Find the equation for the line that passes through (10,- 9) that has slope -8/3.
Give your answer in point-slope form.
Answer:
The answer is [tex]y=-(\frac{8}{3} )x+\frac{53}{3}[/tex]
Answer:
53 answer y hijsbjdh
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3
Is the answer correct?
Answer:
Yes, that is the correct answer
Step-by-step explanation:
Find the slope and the y-intercept of the graph of the linear equation.
y = -3x+2
The slope is (Answer here)
and the y -intercept is (Answer here)
Answer:
slope = -3
y-intercept = 2
Step-by-step explanation:
The equation y = -3x + 2 is written in slope-intercept form of
y= mx +b where m is the slope and b is the y intercept.
m = -3
b= 2
what are the answer 1/7 of 21
Answer:
The answer is 3.
Step-by-step explanation:
1/7(21)= 3
At the beginning of a population study, a city had 340,000 people. Each year since, the population has grown by 9.4%.
Let t be the number of years since start of the study. Let y be the city's population.
Write an exponential function showing the relationship between y and t.
Answer: y = 340000*(1.094)^t
This is the same as writing [tex]y = 340000(1.094)^t[/tex]
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Explanation:
The answer above is in the form y = a*b^t
a = 340,000 = initial population
b = 1.094 = 1 + 0.094 = growth factor
Think of the growth factor as 100% + 9.4% = 109.4%
please help me with this question
Answer:
[tex]0[/tex]
Step-by-step explanation:
I can't understand your hand writing
Answer:
improve your handwriting then worry about math fam
Mrs. Holloway is teaching a 5th grade class. She is standing 42 feet in front of Alan. Gina is sitting 40 feet to Alan's right. How far apart is Mrs. Holloway and Gina?
Answer:
The answer is 2 feet
Step-by-step explanation:
its 42-40=2
What is the measure of angle J in the triangle below?
Answer:
53.13°
.
.
.
....,...................
Use rounding to estimate the product of 7,984 and 8,495. Round both numbers to the nearest thousand to find your answer
The typical level of a low tide at a beach is the point on number line. Each day's high and low tides are measured relative to the typical low tide. On Monday morning, low tide is at -0.8 ft. On Tuesday morning, low tide is at -0.4 ft. a. Write an inequality to compare the low tides on Monday and Tuesday mornings. Show your work
Answer: Tides are the daily rise and fall in surface water levels of bays, gulfs, inlets and oceans and vary depending on the day and location. Tides are big periodic waves that move through the ocean in response to the gravitational attraction of the moon and the sun.
Step-by-step explanation: according to the National Oceanic and Atmospheric Administration (NOAA). Most coastal areas experience two high tides and two low tides every day and they may not be equal. (In some places, such as the Gulf Coast, you may only get one high and one low tide per day.) The height difference between high tide and low tide is called the tidal range. In some areas, the difference between high and low tides may not be so noticeable. In other areas, it can be quite stark.
!!Pls help i desperately need this will give brainliest !!
Find the radius of a sector if Area = 32 cm² of a sector of a circle with θ = radians.
Use: A = ½ θ · r² with θ = and A = 32 cm² and π = 3.14.
Round the area of the sector to the nearest hundredth and express the answer in the correct unit of measure.
Answer:
Step-by-step explanation:
[tex]\frac{\pi r^2}{2 \pi } \times \theta=32\\\frac{1}{2} r^2 \times \theta=32\\r^2=\frac{32 \times 2}{\theta} \\r^2=\frac{64}{\theta} \\r=\frac{8}{\sqrt{\theta} }[/tex]
substitute the value of θ and solve ,you get the value of radius r
List the coefficients of x in the expression
x - 7x2y.
Answer:
7
Step-by-step explanation:
7 is the coefficient of X.
Reasoning? The coefficient is the number that comes before a variable. In this case, 7 is the coefficient of x.
And 2 is the coefficient of y.
Which pairs of angles are alternate interior angles? Select all that apply.
13
214
517
un
618
Answer: 214 and 618
One number is five more than the other their sum is 33
Answer:
14 and 19
Step-by-step explanation:
33-5=28
28÷2=14
Hence, one of the number is 14.
14+5=19.
Another number is 19.
∴For checking:
19+14=33
19-14=5
look at image below
:D
Answers:
The answer is in the picture!
Please give brainliest. :)
Consider the function f(x) = 15x² + 60x - 19.
Answer:
Part A: [tex]f(x) = 15(x+2)^2-79[/tex]
Part B: [tex](-2, -79)[/tex]
Step-by-step explanation:
Have a great rest of your day
Expand. (1-4m)(m^2-3m+8) your answer should be a polynomial in standard form
Answer:
[tex]4 {m}^{3} - 13 {m}^{2} + 35m - 8 [/tex]
what is the perimeter
Answer:
wouldt be 112,000?
Step-by-step explanation:
Dont you do 10x9x4x4??
That is how i was tought how to do it. I dont know about you.
Answer:
80
Step-by-step explanation:
The 4 doesn't matter right now unless you were solving for area. Visualize the shape as a normal rectangle with no cut out. That would make the bottom line 10+10+10 which equals 30. The top line is the same as the bottom, so that would also be 30. Then you just have the two sides which are both 10, combined them and they would add up to 20. Perimeter is the distance around the edge of a shape. You find the perimeter by adding up the distance of all the sides. So in conclusion, you're answer will be 30+30+10+10 which equals 80.
Help of it's ok?
Nomber 9 and 10 plss help
Answer:
i wrote an explanation and the answers below!
Step-by-step explanation:
so ill give you a few tips on these!
1/2 can be written as 0.50 since its half .
1/4 can be written as 0.25 since its fourth (i dont know how to say it loll) ?
2 1/2 is 2.50 because it has 2 and 0.5
now ill just solve the rest since i explained
3 1/4 = 3.25
20 1/2 = 20.5
10.
to solve for these you have to simplify and look for the GCF (greatest common factor)
20/4
the GCF is 4 because you can divide 4 to the numerator and the denominator, and because it is the biggest value that you can divide between them
so now you just have to simplify it
20/4 = 5
30/5 = 6
40 / 8 = 5
what is first step in evaluating the expression 6-(4÷2x5) ²?
a. 6-4
b. 4÷2
c. 2x5
d. 5²
The standard trampoline has a diameter of 14 feet. What is its area?
Answer:
The area of the circle is 154 square feet
Step-by-step explanation: